- ... systems
- Some of them are
microquasars (for details see, for example, Greiner 1999; Mirabel 2000; Mirabel & Rodriguez 2002).
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
- ...
frame
- We use as usual the notation
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
- ...(Cherepashchuk 2002)
- Shakura (1972) predicted that if the
plane of an accretion disk is tilted relative to the orbital plane
of a binary system, the disk can precess.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.